Photometric CCD UBV measurements have been obtained in the held of the youn
g Cygnus cluster NGC 6910. The observations reach down to magnitude V simil
ar or equal to 18 for 206 stars measured in all three UBV bands, uncovering
the region of the color-magnitude diagram where pre-main-sequence (PMS) st
ars are expected. The transformation of our instrumental magnitudes to the
standard system is discussed on the basis of two different sets of standard
stars: 22 stars from six fields in the Landolt catalogs and 48 stars with
published photoelectric photometry in common with ours in the four clusters
observed in this campaign. The latter set is preferred, since it enables t
he effect of systematic errors in the U-B colors to be minimized. The adopt
ed cluster parameters are E(B-V) = 1.02 +/- 0.13, V-0 - M-V = 11.2 +/- 0.2,
and age = (6.5 +/- 3) x 10(6) yr. The search for PMS cluster members on th
e basis of the calculated color excess and distance modulus results in the
proposed membership for 11 PMS stars of spectral types from A to G.